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Power transmission line tower grounding selection method and system

A technology for transmission lines and towers, which is applied in the field of transmission line tower grounding selection methods and systems, and can solve problems such as the inability to adopt tower grounding grid grounding resistance reduction strategies in different regions

Active Publication Date: 2021-03-30
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since transmission line towers span different terrains, landforms and geological regions, it is impossible to adopt a unified grounding resistance reduction strategy for tower grounding grids in different regions; at present, there are many types of grounding materials and grounding types on the market, how to choose suitable grounding materials in actual work and grounding type, how to choose an effective transmission line tower grounding method to reduce line grounding resistance according to specific conditions, specific regions, and specific soil conditions is a key problem that needs to be solved

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  • Power transmission line tower grounding selection method and system

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Embodiment 1

[0025] This embodiment provides a method and system for selecting the grounding of transmission line poles and towers. According to different geological conditions, comprehensively considering factors such as construction convenience, resistance reduction effect, operation and maintenance costs, and land acquisition costs, a grounding resistance reduction selection method for transmission poles and towers is provided. best practice. The current resistance reduction measures have specific conditions for their application. Different methods for different regions and different soil conditions can effectively reduce grounding resistance. specific:

[0026] (1) Different grounding materials and their characteristics;

[0027] (1-1) Metallic grounding material

[0028] Metallic grounding materials include stainless steel, galvanized steel, copper-clad steel, pure copper, etc. Metal grounding materials are the main materials used in the grounding grid of transmission lines. The adv...

Embodiment 2

[0079] This embodiment provides a transmission line tower grounding selection system, including:

[0080] The database construction module is used to construct a grounding rule database, wherein the grounding rule database includes grounding materials and grounding types under different soil types, the grounding materials include metallic grounding materials and non-metallic grounding materials, and the grounding types include vertical grounding , extension grounding, deep well grounding, blasting grounding and external grounding;

[0081] The grounding mode matching module is used to judge the soil type using a pre-built soil identification model for the soil sample set to be tested, and match the grounding selection mode of the transmission line tower under the current soil condition in the grounding rule database according to the soil type.

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Abstract

The invention discloses a power transmission line tower grounding selection method and system. The method comprises the steps: building a grounding rule database which comprises grounding materials and grounding types under different soil types, and enabling the grounding materials to comprise a metallic grounding material and a non-metallic grounding material, wherein the grounding types comprisevertical grounding, epitaxial grounding, deep well grounding, blasting grounding and external grounding; and judging the soil type of the to-be-detected soil sample set by adopting a pre-constructedsoil recognition model, and matching a power transmission line tower grounding selection mode under the current soil condition in a grounding rule database according to the soil type. According to thegrounding rule database constructed by the invention, a specific grounding method is adopted under a specific soil condition and a specific region, so that the grounding resistance is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of lightning protection and grounding of transmission lines, in particular to a method and system for selecting grounding of transmission line poles and towers. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The grounding grid of a power station or substation is an important part of the actual construction of the power system. It is closely related to the long-term normal and safe operation of the substation. Because the geological conditions of different locations vary greatly, the grounding design method of the grounding grid is directly related to the personal safety of the staff in the station. Therefore, designing a reasonable and cost-effective grounding grid according to local conditions has strong engineering practical significance and good economic value. [000...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06F16/24H01R43/00
CPCG06F16/24H01R43/00G06F18/2411G06F18/214Y04S10/50
Inventor 袁海燕庄燕飞刘嵘师伟李杰汪鹏王江伟张丕沛王建孙承海孙艳迪孙景文张振军
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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